Machines not elsewhere specified – Pump or compressor
Design Patent
2003-12-16
2004-11-23
Seifert, Ralf (Department: 2914)
Machines not elsewhere specified
Pump or compressor
CD10S081000
Design Patent
active
D0498765
CLAIM:
The original design for gas detector pump, as shown.
REFERENCES:
patent: D254509 (1980-03-01), Migchelbrink, Jr.
patent: D263050 (1982-02-01), Chang
patent: 4531895 (1985-07-01), Zeck
patent: D316099 (1991-04-01), Hartz
patent: D332266 (1993-01-01), Iwai et al.
patent: D352721 (1994-11-01), Cook et al.
patent: D492325 (2004-06-01), Niwatsukino et al.
Gastec Corporation
Seifert Ralf
Wenderoth , Lind & Ponack, L.L.P.
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